KR100191013B1 - Melt spinning machine - Google Patents

Abstract

The present invention relates to a melt spinning apparatus, and the present spinning apparatus includes a spin pack receiving portion (1a) for mounting a spin pack on a lower surface thereof, and a spin pack connecting body (2) on the top of the spin pack receiving portion (1a). Spinning pack screwed to the threaded portion (2b2) of the spinning pack connector (2) in the state of supporting the packing (15) on the outer surface (1) and the joining surface of the spin pack connector (2) is mounted Consists of (5), the guide portion (2b3) is inserted into the screwed portion of the polymer inlet member (10) mounted on the top of the spin pack (5) to the front end of the spin pack connector (2) ) And a posture holding pin 14 for positioning the spinning pack and for maintaining the posture of the spinning pack in a substantially vertical state when the spinning pack is rotated.

Description

Melt spinning equipment

1 is a schematic cross-sectional view showing one embodiment of the configuration of the melt spinning apparatus according to the present invention.

Figure 2 is a schematic cross-sectional view showing one embodiment of the configuration of the radiation pack connector of Figure 1;

3 is a perspective view around line III-III of FIG. 2;

4 is a schematic cross-sectional view showing one embodiment of the configuration of the polymer inlet member of FIG.

5 is a perspective view of the periphery of the V-V line of FIG.

6 is a perspective view of line VI-VI in FIG. 4;

7 is a schematic enlarged view showing an embodiment of the packing mounting portion of the bonding surface of FIG.

8 is a schematic enlarged view showing another embodiment of the packing mounting portion of FIG.

9 is a schematic diagram showing another embodiment of the pin of FIG.

FIG. 10 is a perspective view around the X-X ray of FIG.

* Explanation of symbols for main parts of the drawings

1: outer body 1a: radiation pack receiving portion

1b: polymer channel 2: spin pack connector

2a: Polymer introduction channel 2b: Male threaded part

3: bolt 4: sealing packing

5: spinning pack 6: pack body

7: plug 8: filter case

9 filter 10 polymer inlet member

11: Lock nut 12, 15: Packing

13: filter medium 14: pin

The present invention relates to a melt spinning apparatus that can be detachably operated from the bottom of the outer pack (pack).

In general, a molten spinneret emitting synthetic fiber yarns is a member for receiving a melted melt solution (hereinafter, referred to as a polymer) from the outside, weighing and distributing it to a spinning pack, and an outer body for storing and heating them. And, it is composed of a spin pack mounted to the spin pack mounting space provided on the lower surface of the outer body.

In the case of mounting the radiation pack from the lower portion of the outer space, according to the method according to Japanese Patent Application Laid-Open No. 510-27771 and Japanese Patent Application Laid-Open No. 2-6842, the radiation pack is inserted from the lower portion to the outer body. The side face of the spin pack is biased by the installed push rod or the bolt to fix the spin pack to the outer body to form a seal on the assembly of the polymer inlet, and the spin pack as described in Japanese Patent Application Laid-Open No. 52-107313 Is a method of forming a seal at a junction of a polymer inlet by inserting from a plurality of bolts by tightening and fastening a plurality of bolts on the spin pack from an upper part of an outer body, and a spin pack such as described in Japanese Patent Application Laid-Open No. 53-23404 A bolt has been formed at the junction of the polymer inlet by screwing the bolt from the bottom of the spin pack.

In the above method, the side of the radiation pack is biased and fixed to the outer body as in the former method. In order to improve sealing performance, a large boost force is required. The member capable of accommodating the repulsive force is made of a solid material. It must be manufactured, but the degree of deformation of the sealing packing depends on the size of this subordinate force. Here, the radiation pack is deflected to the mounting position with respect to the radiation pack mounting space portion formed in the outer body, if the deformation degree is large, the radiation pack is in contact with the wall surface of the outer body is uneven thermal conductivity to the radiation pack There was a problem.

On the other hand, in the method of fixing the spinning pack on the outer body by a plurality of bolts as in the latter method described above, in order to improve the sealing property, the mounting time of the spinning pack becomes long because the bolts must be uniformly tightened, and the moving efficiency is increased. There was a problem of this deterioration. Therefore, in order to solve such a problem, Japanese Patent Application Laid-Open No. 60-252710 has a space for mounting a radiation pack, and an outer body provided with a radiation pack connector having a screw for connecting to a polymer introduction passage in an upper portion of the space. A molten spinning apparatus comprising a spinning pack attached by rotating at a predetermined angle with respect to the screw of the spinning pack connector while retaining a sealing packing on a joint surface with the spinning pack connector has been proposed.

The packing in the spinning pack according to the device and the packing of the spinning pack connector and the joint surface of the spinning pack are self-sealed by polymer pressure, and the spinning pack can be installed by one-touch by screws.

However, in the above apparatus, since each packing is installed to be self-sealed by the polymer pressure, problems such as the initial stage of the introduction of the polymer in which the pressure of the polymer is extremely low or a failure of the metering pump occur, so that the fluid transfer is temporarily stopped. If the pressure of the polymer is suddenly lowered due to the stop, sufficient sealing effect cannot be obtained, and there is a problem that the polymer leaks from the packing part.

In addition, it is difficult to engage the screw while supporting the heavy-duty spin pack on one side, and when the stopper is provided with a drain or a rectangular shape, the discharge position of the stopper is changed by the engagement position of the screw. Since the cooling wind cannot be the same, there is a problem that the quality of the fiber is different for each spinning pack.

Accordingly, the present invention provides a melt spinning device which is easy to engage the screw portion of the spin pack and the screw portion of the polymer inlet member without leaking even in a state where the pressure of the stopper is kept constant and the polymer pressure is reduced. There is a purpose.

In order to solve the above problems, a polymer introduction passage in the spin pack receiving portion, an outer body provided with a spin pack connector having a connecting screw portion, and a screw for sealing is inserted into the screw portion In the spinning device consisting of a spin pack, the spin pack at the time of mounting the spin pack by a melt spinning apparatus formed with a guide portion for matching the screw engaging portion and the screw engagement position of the polymer inlet member of the spin pack and the spin pack The male screw of the connecting member and the female screw of the polymer inlet member can be easily engaged.

In addition, even in the case of a stopper having a ridge or rectangular discharge port by a melt spinning device having a positioning unit for positioning the stopper at the stopper in the polymer inlet member of the spin pack and the polymer inlet member of the spin pack, There is an effect that can be mounted so that the discharge position of the stopper with respect to the direction is constant.

The packing has a conical inclined surface, the inclination angle of the inclined surface is inclined to be greater than the angle of the mating member, and a centering portion for joining the polymer passages and a horizontal holding portion for keeping the packing in a horizontal state. The melt-spinning device in one shape can secure the deformation degree of the packing by tightening the packing without moving during the operation of the spinning packing device, and has an effect of reliably preventing the polymer from leaking.

A spinneret comprising: an outer body having a polymer pack passage and a spinneret connecting body having a screw for connection; and a spinneret screwed to the screw with a sealing packing inserted therein, The spin pack has the effect of reliably preventing the polymer from leaking even at a low pressure by the packing installed in the spin pack and the melt spinning apparatus assembled and mounted so that the packing on the joint surface has an initial tightening force. There is.

The screw thread cutting portion in which the thread of a predetermined length is cut at the distal end portion of the shaft body in which the spin pack connector is formed, and the screw portion is divided into at least four quarters along the circumferential direction, and two of the two divided parts are all cut in the longitudinal direction of the shaft center. It is possible to easily and securely engage the threaded portion by the melt spinning device having a threaded portion and a non-threaded portion in which the polymer inlet member is screwed with the spin pack connector. In addition, there is an effect of reducing the amount of rotation when mounting the spin pack.

At least two positioning pins are installed in the spin pack connector at equal intervals in the circumferential direction, and the position wall portion where each of the positioning pins contacts a surface facing the spin pack connector of the polymer inlet member. There is an effect of reliably mounting so that the discharge position of the spin pack with respect to the connection by the melt spinning apparatus installed is fixed.

The spin pack is rotated by a melter spinning device formed on a surface facing the spin pack connector of the polymer inlet member so that an inclined surface such as a screw lead formed on the polymer inlet member corresponds to a pin installed on the spin pack connector. When doing so, it is possible to keep the posture of the spin pack in a substantially vertical state, and to make sure that the initial engagement of the thread part is made sure and smooth.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

1 is a schematic cross-sectional view showing an embodiment of the configuration of the melt spinning apparatus of the present invention, the melt spinning device is provided with an outer body (1), a spin pack connector (2), and a spin pack (5) The outer body 1 has a radiation pack receiving portion 1a. In addition, the spin pack connector (2) has a polymer guide passage (2a) in communication with the polymer passage (1b) of the outer body (1), and a male screw portion (2b) for connection. The spinning pack connector (2) is installed through the sealing packing (4) by the spinning pack receiving portion (1a) bolt (3) of the outer body 1 so that the male screw portion (2b) is located at the bottom , The spinning pack 5 is fastened to the male screw portion (2b) of the spinning pack connector (2).

The spin pack (5) and the cylindrical pack body (6); A plug 7, a filter case 8, a filter 9, and a polymer inlet member 10, which are sequentially mounted in the pack body 6 from below to an upward direction; Locknuts 11 for fixing them to the pack body 6 are formed.

Ring-shaped packings 12 are attached to the recesses 8b and 10k formed at the junction of the filter gay 8 and the polymer inlet member 10, and the inside 8a of the filter case 8 is provided. The filter medium 13, such as ene sand, is filled.

The male screw 2b of the above-mentioned spin pack connector 2 is formed on the top of the shaft 2b1 as shown in FIG. 2 and FIG. 3, and the tip of the festival 2b1 has a thread of a predetermined length. A thin axial guide portion 2b3 is formed. The male screw portion 2b is divided into four equal parts along the circumferential direction, and the female screw 2b2 is formed on two of the two symmetrically divided symmetrical parts, and the non-threaded portion in which all the threads are cut in the longitudinal direction of the axial center on the two remaining symmetrical parts. 2b4 is formed. The non-threaded portion 2b4 may be three or four parts.

In addition, at the base of the male screw portion 2b of the spin pack connecting body 2, the polymer of the spin pack 5 is used for positioning while maintaining the discharge device of the stopper when the spin pack 5 is mounted. When the inlet member 10 is screwed to the spin pack connector 2, a pin 14 having a circular cross-sectional shape that serves as a posture maintenance for maintaining the posture of the spin pack in a substantially vertical state is provided with a shaft ( In the circumferential direction of 2b1), three are installed at equal intervals along the circumferential direction.

On the other hand, the pin 14 is a rod-shaped body having a rectangular cross-sectional shape, and as shown in FIG. 9 and FIG. 10, the rod body 14 ′ may be integrally formed with the spin pack connector 2. .

The polymer inlet member 10 described above is provided with a through hole 10a of the polymer passage as shown in FIGS. 4 and 5, and is screwed to the male screw portion 2b of the pack connector 2. The female screw part 10b is formed.

Here, the female screw portion 10b is composed of a female screw 10b1 and a non-threaded portion 10b2 corresponding to the male screw 2b2 and the non-threaded portion 2b4 of the male screw portion 2b of the spin pack connector 2. The female screw 10b1 is provided with a narrow gap so that the male screw 2b2 of the spin pack connector 2 can move in the vertical direction of the axial center, respectively, in a state coincided with the circumferential direction.

In addition, the upper surface of the polymer inlet member 10 has an inclined surface such as a lead of the female screw 10b1 of the female screw portion 10b as shown in FIG. 10c), a wall surface 10d for fixing the polymer inlet member 10 to a predetermined position when the polymer inlet member 10 is screwed to the spin pack connector 2, and a horizontal surface for matching the engagement positions of the screws ( 10e) is formed to correspond to the three pins 14 installed in the spin pack connector (2).

When the pin 14 is in contact with the horizontal surface 10e, the mating position of the male screw 2b2 of the spin pack connector 2 and the female screw 10b1 of the polymer inlet member 10 coincides with each other. It is necessary.

The packing 15 mounted at the junction of the spin pack connector 2 and the polymer inlet member 10 described above has the polymer passage 15a and the conical inclined surfaces 15b and 15c as shown in FIG. Each inclination angle of the two inclined surfaces (15b, 15c) is 0.1 to 5 than each inclination angle formed by the inclined surface (2c) of the spin pack connector (2) and the inclined surface (10f) of the polymer inlet member 10 In addition, preferably 1 to 3, the centering portion 15d and the polymer inlet member 10 which are fitted with the end portion 10g for aligning the polymer passage formed in the polymer inlet member 10 are also provided. It is a shape provided with the horizontal part 15e which fits into the formed packing support part 10h.

On the other hand, the insertion packing 15 may be formed in a shape having only the settering portion 15f associated with the end portion 10j for aligning the polymer soil formed in the polymer inlet member 10 as shown in FIG. .

In addition, the ring-shaped packing 12 in the spin pack 5 tightens the lock nut 11 so that a predetermined initial tightening force is applied.

Here, when the polymer inlet member 10 of the spin pack 5 is screwed and tightened to the spin pack connector 2, an initial tightening force is applied to the packing 15 of the joint surface.

Hereinafter, the assembly of the spinning pack 5 installed in the melt spinning apparatus and the mounting operation of the spinning pack 5 to the outer body 1 will be described.

The spin pack 5 has a plug 7, a filter case 8, a filter 9, a filter material 13, a packing 12, and a pulley inlet member upwardly from below in the pack body 6. Insert 10 sequentially. By screwing the lock nut 11 into the pack body 6, the packing 12 between the filter case 8 and the polymer inlet member 10 is tightened to have an initial tightening force that does not leak even under low pressure polymer pressure. It becomes. In this case, the upper surface of the stopper 7 and the lower surface of the filter case 8 are urged and sealed at the same time.

The packing 12 needs to set each dimension in consideration of the deformation amount for imparting initial tightening force.

The assembled spinning pack 5 is heated by a predetermined heater (not shown), and when the spinning pack 5 reaches a predetermined temperature, it is taken out of the heater and the polymer inlet member 10 of the spinning pack 5 is formed. The female screw 10b1 of the polymer inlet member 10 is inserted when the packing 5 is seated on the inclined surface 10f toward the radiation pack receiving portion 1a from the lower portion of the outer enclosure 1. Is entered along the guide portion 2b3 of the spin pack connector 2 to coincide with the polymer passages 2a, 10a and 15a, and then the female screw 10b1 of the polymer inlet member 10 is connected to the spin pack. The non-threaded portion 2b4 of the sieve 2 and the non-threaded portion 10b2 of the polymer inlet member 10 are moved so as to coincide with the male screw 2b2 of the spin pack connector 2 in the circumferential direction, respectively. do.

Then, when the horizontal surface 10e formed on the upper surface of the polymer inlet member 10 contacts the pin 14 provided on the spin pack connector 2, the insertion operation of the spin pack 5 is terminated.

At this time, the engagement position of the male screw 2b2 of the spin pack connector 2 and the female screw 10b1 of the polymer inlet member 10 coincides with each other.

In addition, when the spinning pack 5 is rotated, the inclined surface 10c formed on the upper surface of the polymer inlet member 10 moves in contact with the pin 14 installed on the spinning pack connector 2. During the rotation of the pack 5, the female screw 10b1 of the polymer inlet member 10 is connected to the male screw 2b2 of the spin pack connector 2.

Thus, the packing 15 on the polymer inlet member 10 comes into contact with the inclined surface 2c of the spin pack connector 2, and furthermore, when the spin pack 5 is rotated, the polymer inlet member 10 The tightening of the radiation pack 5 is completed by the position connecting wall surface 10d formed thereon in contact with the pin 14 provided on the radiation pack connector 2.

When the above-mentioned spinning pack 5 is rotated approximately 90 °, the packing 15 is formed by the leads of the screws 2b2 and 10b1 to be coupled to each other so that the packing 15 has an inclined surface 15b and 15c of the inclined surface of the spinning pack connector 2. By pressing and compressing by 2c) and the inclined surface 10f of the polymer inlet member 10, it is tightened so that it may have an initial tightening force which does not leak even in the low pressure polymer pressure.

As a result, each of the packings 12 and 15 is pressurized to the wall surface of the packing mounting part of each member when the pressure of the polymer is increased, thereby sealing itself.

Claims (7)

In the spinning device comprising a spinning pack accommodating portion, an outer body provided with a polymer introduction passage, a spinning pack connector having a screw for connection, and a spinning pack screwed with the screw in a state where a sealing packing is inserted, Melting spinning apparatus formed with a guide portion to match the engaging position of each screw in the screw coupling portion of the polymer pack inlet member of the spin pack and the spin pack. In the spinning device consisting of a spinning pack receiving body and the outer body is equipped with a spin pack connecting body having a polymer introduction passage and a connection screw thread, and a spinning pack screwed to the screw portion with the sealing packing is inserted, Melting spinning apparatus is provided with a positioning portion for maintaining the discharge position of the stopper in the spin pack connector and the polymer inlet member of the spin pack. In the spinning device comprising a spinning pack connecting body having a polymer introduction passage and a screw for connecting the spinning pack receiving portion, the spinning pack is screwed and screwed in the state in which the outer shell and the sealing packing is inserted, The packing is provided with a conical inclined surface, the inclination angle of the inclined surface is inclined more than the angle of the mating member, while the centering portion is in agreement with the polymer passage, and the horizontal holding portion for holding the packing in a horizontal state molten spinning Device. In the spinneret comprising an outer body provided with a polymer pack passage and a threaded portion for connection to the spin pack receiving portion, and a spin pack screwed to the screw portion with the sealing packing is inserted, The spinning pack is a melt spinning apparatus is assembled and mounted so that the packing is installed in the spinning pack, and the packing of the joint surface has an initial tightening force, respectively. The screw pack according to any one of claims 1 to 4, wherein the spin pack connector includes a screw part cutout part of which a thread of a predetermined length is cut at a distal end portion of the threaded festival, and the screw part is divided into at least four quarters along the circumferential direction and double divided. Melted spinning, characterized in that the two provided with a non-threaded portion of which all the threads are cut in the longitudinal direction of the axial center, and the polymer inlet member is formed with a threaded portion and a non-threaded portion screwed to the spin pack connector. Device. The method of any one of claims 1 to 4, wherein at least two positioning pins are provided in the spin pack connector at equal intervals in the circumferential direction, and the surfaces of the polymer inlet members facing the spin pack connector are formed on the surface. A melt spinning apparatus comprising a wall portion for determining a position at which each positioning pin contacts. According to claim 6, characterized in that the inclined surface, such as the lead of the screw formed in the polymer inlet member formed on the surface facing the spin pack connector of the polymer inlet member so as to correspond to the pin installed in the spin pack connector. Melt spinning machine.